Home / 220,447.88-303,936.38-142,786.46

Finding the Fourth Proportional to 220,447.88, 303,936.38 and 142,786.46

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Solution

The fourth proportional to 220,447.88, 303,936.38 and 142,786.46 is: 196,862.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,447.88 : 303,936.38 = 142,786.46 : x
  2. Step 2: Convert to fraction form
    220,447.88/303,936.38 = 142,786.46/x
  3. Step 3: Cross multiply
    220,447.88x = 303,936.38 × 142,786.46
  4. Step 4: Simplify right side
    220,447.88x = 43,397,999,765.41
  5. Step 5: Solve for x
    x = 43,397,999,765.41/220,447.88
  6. Step 6: Final answer
    x = 196,862.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.